Prolonged speech (in Parliament) (10)

I believe the answer is:

filibuster

(Other definitions for filibuster that I've seen before include "Speak at length to obstruct parliamentary proceedings" , "Mercenary" , "Delaying tactic to obstruct legislation" , "Waste time by making long speeches" , "delaying manoeuvre" .)

I've seen this clue in the Sydney Morning Herald.

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